Thymosin Alpha-1 10 mg vial
Tissue biology

Thymosin Alpha-1

Thymosin Alpha-1 is supplied as 10 mg of lyophilized powder in a sealed vial, for laboratory research use only, shipped from Canada.

10 mgLyophilizedResearch use only
$89CAD · per vial
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Shipping is $15 flat per order, and free on orders over $200. Shipping and returns

About

An acetylated 28-residue peptide (INN thymalfasin) derived from the precursor prothymosin alpha. Thymalfasin has the sequence of the thymic peptide first found in thymosin fraction 5, a crude thymus extract.

In the literature

Appears extensively in immunology and T-cell-biology literature, in cell-culture and animal-model studies.

Storage

Store the sealed vial at −20 °C, protected from light and moisture. Let it reach room temperature before opening.

Supplied as

Lyophilized powder, 10 mg per vial, labelled for research use only.

Reference data

FormulaC129H215N33O55
Average molecular weight3108.3 g/mol
Monoisotopic mass3106.5041 Da
CAS number62304-98-7
Also known asthymalfasin
PubChemCID 16130571

Reference values from PubChem's record for the compound, not measurements of any Solara lot.

Laboratory analysis

LaboratoryJanoshik Analytical
ReportTask 114440
Report date13 March 2026
Manufacturer's lot032026
Sample testedThymosin Alpha-1 (vial)
IdentityNot reported
Purity99.597% (HPLC)
Measured quantity9.76 mg

Analysis of the manufacturer's lot, not of a Solara-labelled vial; Solara labels carry no lot number. The sample tested was Thymosin Alpha-1 (vial), a different fill from this 10 mg vial. An unretained peak at the column's void volume was not included in the purity figure (laboratory comment). Technical data sheet (PDF)

Questions

What is Thymosin Alpha-1?
An acetylated 28-residue peptide (INN thymalfasin) derived from the precursor prothymosin alpha. Thymalfasin has the sequence of the thymic peptide first found in thymosin fraction 5, a crude thymus extract.
What does 10 mg on the Thymosin Alpha-1 vial mean?
The label states the total quantity in the vial: 10 mg of lyophilized powder. Solara does not publish whether that figure is the gross powder weight or the net peptide content.
What is the molecular weight of Thymosin Alpha-1?
PubChem lists an average molecular weight of 3108.3 g/mol and the formula C129H215N33O55 (PubChem CID 16130571). This is a computed reference value for the compound, not a measurement of a Solara lot. The label does not state the salt form; a salt has a higher formula weight than this value.
What is the CAS number of Thymosin Alpha-1?
The CAS Registry Number given for Thymosin Alpha-1 in its PubChem record is 62304-98-7; other salt forms carry other numbers.
How should Thymosin Alpha-1 be stored?
Store the sealed vial at −20 °C, protected from light and moisture. Let it reach room temperature before opening.
Where does Solara ship Thymosin Alpha-1 from?
Solara ships from Canada. Orders are dispatched within one to two business days of payment, sealed and packed to keep the powder dry and out of light. Prices are in Canadian dollars. Shipping is $15 flat per order, and free on orders over $200.
Is Solara's Thymosin Alpha-1 for human use?
No. The Thymosin Alpha-1 Solara supplies is a lyophilized powder for laboratory research use only, not for human or veterinary use. This product is not an authorized drug, carries no Drug Identification Number and is not GMP material. The Research use policy states the full condition of supply.
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